Heating-drum



(No Model.)

P. J. TRACY. HEATING DRUM.

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UNITED STATES PATENT EricE.

PATRICK J. TRACY, OF RACINE, VVISCOI\ISII\I.`

HEATING-BRUNI SPECIFICATION forming part of Letters Patent No. 444,078,dated January 6, 1891.

Application iiled November 3 1890. Serial No. 370,117. (No model.)

To all whom it may concern:

Be it known that I, PATRICK J. TRACY, a citizen of the United States,residing at Racine, in the county of Racine and State of Wisconsin, haveinvented certain new and useful Improvements in Heating-Drums and I dohereby declare that the following is a full, clear, and exactdescription of the same, reference being had to the annexed drawings,making a part of this specification, and to the letters of referencemarked thereon.

Figure l of the drawings represents a sectional elevation of my improvedheatingdrum, showing by arrows the course of the air to be heated, alsothe course ofthe smoke and products of combustion. Fig. 2 represents ahorizontal section taken on line e' z of Fig. l; and Fig. 3 a detailview, on an enlarged scale, of one of the regulators.

The present invention has reference to that class of heat radiators ordrums for heat-generating devices, such as stoves, and which are adaptedto be connected thereto or disposed at any convenient point in the .lineof stove-pipe, and in which air tubes or passages are provided extendingfrom side to side of the drum for the passage of the currents of air tobe heated.

The invention has for its object to improve the construction of theabove-mentioned class of heat radiators or drums, whereby the current ofair is eftectually heated and the waste heat from the products ofcombustion perfectly utilized; and it consists in the details ofconstruction substantially as shown in the drawings, and hereinafterdescribed and claimed.

In the accompanying drawings, A represents the drum, which maybe of anysuitable size or shape, and is provided at its ends with sleeves ab,respectively, for connecting thereto the section of stove-pipe, as shownat B C. These sleeves may be of any suitable construction, or anywell-known means may be provided for making a connection between thedrum and sections of stove-pipe; but in the present instance I haveshown sleeves, as above described, and which I prefer to provide withshoulders c cl, against which the edges of the stove-pipe sections willabut when coupled to the sleeves. These shoulders, as will be seen, arelocated upon the outside and inside of the sleeves, respectively, thesleeve b having its shoulder cl upon the interior thereoi:` and thesection C ot` stovepipe inserted within the sleeve, so that, if desired,the drum at the sleeve maybe provided with suitable legs or supports,(shown in dotted lines,) when found desirable.

The sleeve a ot' the drum is provided with a suitable damper D', of anywell-known construction, and below this damper is an inclined deiiectorE, for the upwardly-passing smoke or escaping products of combustion, soas to cause it to pass over a greater area of surface before it escapesfrom the drum, thus utilizing it to the greastest possible extent as aheating medium.

In the construction of the heating-drum A, I prefer to have the heads EF of cast metal andl the body of suitable sheet metal connected to theheads in any suitable and wellknown manner, said heads forming the upperand lower ends of the drum, respectively. The head F, as will be seen,is cast or otherwise provided with inwardly extending flanges e, towhich are suitably connected the air-tubes GII I J the latter beingshown only in Fig. 2 in cross-section, as the vertical section shown inFig. l would out away the tube J and the iiange to which it isconnected. Hence they would not be seen, except in crosssection, andthen only the tube would be shown. i

The tubes, as above described, are connected in any suitable manner withinterior supplemental drums K L M N, respectively, with which the tubescommunicate, as shown, and thimbles f are disposed between the walls ofthe supplemental drums L MN, throughwhich pass the air-tubes, as shown,thereby forming an air-tight connection between the tubes and drums andpreventing the escape of the heated air, except through its properoutlet.

It will be seen thatthe supplementaldrunls are substantially oval incross-section, or of such shape as to present a space g for the passageof the smoke and products of combustion as they move upward to escapeout thro ugh the top of the main drum. These supplemental drums are sodisposed within the main drum that these spaces between the edges of theIOO attore former and wallsof the latter will be on alternate sides ofthe main drum, whereby the smoke and products of combustion arecompelled to take a circuitous course before escaping, thereby retainingthese heating mediums within the main drum as long as they can beeffectively utilized to impart heat to the currents of air passing intothe supplemental drums and distributed into and throughout the room orapartment.

In describingl more in detail the air-tubes with relation to thesupplemental drums to which they are connected it should be understoodthat the head F is cast with four of the flanges c, each two bein garranged diametrieally opposite each other and form the four ducts forthe supply of air to the tubes and thence to the supplemental drums. Theairtubc G connects with the drum N, while the air-tube Il passes upthrough said drum and connects with the drum M, and the air-tube I inlike manner exten ds up through the drums N )I L and connects with theupper one of the drums, as shown at K. The air-tube J, which is onlyshown in Fig. extends up through the drums N M and connects with thedrum L, thus each of the air-tubes having its respective drum andsupplying air thereto, as hereinbefore described.

At the lower end of the main drum is a defleetor O to direct the smokeand products of combustion upward in a lateral direction, or toward theside walls of the main drum, and the openings around the flanges c areprovided with regulators P, of any well-known construction, whereby thesupply of air tothe supplemental drums is controlled, the constructionof the regulators used in the present instance being shown in detail inFig. 3.

The air, as will be understood, is supplied to the several supplementaldrums at the base of the main drum through the openings in theregulators or registers when the same are open, andthe air as it enterssaid drums and becomes heated passes out through the outlets orperforations 71 said outlets being protected by cast-metal perforatedplates arranged wit-h relation to the outlets, so that the perforationsin the plates will register there with when the plates are secured byriveting or otherwise to the main drum.

The course of the air as it passes in and out of the supplemental drumsis indicated by the broken arrows, while the course of the smoke andproducts of combustion is represented by arrows in full lines, thusdistinguishing the course of theair therefrom. The smoke and products ofcombustion as they enter the main drum take the course indicated by thefull arrows, first striking the inclined defiector O, passing againstand over the surface thereof, thence between the defleetor and innerwall of the main drum and against the under surface of the supplementaldrinn N, and up through the space g and in an opposite direction betweenthe drums N M and in like mannerbetwcen each ofthe supplemental drumsuntil they pass up and impinge against the inclined deflector D, wheretheir course is directed downward and around the Vdeflect-or and outthrough the pipe I'Lt'ho escape of the smoke and products of combustionheilig con trolled by the damper D.

The supplemental drum K is provided upon its top with a regulator S,which is of such shape as to close the space between the supplementaldrum and the inner side or Wall of the main drum and slides upon thesupplc mental drum in closing or opening the space g, said regulatorbeing normally open, as shown. 'lhe hot-air or supplemental drums ashereinbefore described are so constructed as to have the greatestpossible heating-sur-V face, and to secure this end thc outer rim ol.'said drums is of the same radius as the main drum for about one-half ofits circumference. 'lhen they described adifferent circle to leave acrescent-shaped opening or space between them and the walls of the maindrum, as clearly shown in Fig. 2.

The perforated protecting-plates Vt, which have been hereinbeforereferred to, also serve as anchor-plates, by which the supplementaldrums are held and supported in position within the main drum, rivetsconnecting the drums and plates to the body of main drum, so that theholes therein will register.

There are many changes in the details of construction that could be madewithout altering the essential features of the invention, and Itherefore reserve the right to make any changes in the generalconstruction of the heating-drum and its adaptation of the parts aswould come within ordinary mechanical judgment, an d although I haveshown a specitied number of supplemental drums any number may be used,as found desirable, and the tubes for supplying air thereto may beconneeted to the main drum in any suitable and well-known manner, andalso the supple mental drums may be supported within the main drum, asfound best adapted to the purpose.

Ilaving now fully described my invention, what I claim as new, anddesire to secure by Letters Patent, is-

l.. A heating-dru1n containing a plurality of supplemental drums havingfiat sides and substantially oval shape in horizontal section, whereby aspace is left for the passage of the smoke and products of combustionbetween it and the interior sides of the main drum, and means for thesupply of air to said supplemental drums and also for its dischargetherefrom, substantially as and for the purpose set forth.

2. In a heating-drinn, the combination, with detiectors at the top andbottom thereof, of a plurality of supplemental drums substantially ovalshape in crosssection, whereby a space or passage is left for the smokeand products of combustion between the main and supplemental drums, andmeans for supplying air to the supplemental drums and dis- TOO IIO

charging it therefrom, substantially as and ing with the outsideatmosphere, substantiallyfor the purpose speeied. as and for the purposespecified. y 3. In aheating-drum,an outer shell adapted In testimonythat I claim the above I have for attachment to a stove-pipe andprovided hereunto subscribed my name in the presence 5 with deleetors atits top and bottom, in cornof two Witnesses.

bination with a plurality of supplemental T drums substantially ovalshape in erossseo- PATRICK J TRAC tion and having` suitable means forthe es- Witnesses:

cape of air therefrom, and air-supply pipes GODFREY HAUB,

1o or tubes connected thereto and communioat- EDWIN H. FRUNDSEN.

